2193989070937 has 4 divisors (see below), whose sum is σ = 2198875461300. Its totient is φ = 2189102680576.

The previous prime is 2193989070893. The next prime is 2193989070953. The reversal of 2193989070937 is 7390709893912.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1413176490441 + 780812580496 = 1188771^2 + 883636^2 .

It is a cyclic number.

It is not a de Polignac number, because 2193989070937 - 2²⁷ = 2193854853209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2193989077937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2443194508 + ... + 2443195405.

It is an arithmetic number, because the mean of its divisors is an integer number (549718865325).

Almost surely, 2^{2193989070937} is an apocalyptic number.

It is an amenable number.

2193989070937 is a deficient number, since it is larger than the sum of its proper divisors (4886390363).

2193989070937 is an equidigital number, since it uses as much as digits as its factorization.

2193989070937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4886390362.

The product of its (nonzero) digits is 46294416, while the sum is 67.

The spelling of 2193989070937 in words is "two trillion, one hundred ninety-three billion, nine hundred eighty-nine million, seventy thousand, nine hundred thirty-seven".